Improvement in machines for rolling file-blanks



UNITED STATES PATENT OEEIGE PERLEY D. OUMMINGS, OF PORTLAND, MAlNE.

IMPROVEMENT IN MACHINES FOR ROLLING FILE-BLANKS.

Specification forming part of Letters Patent No. 59,561, dated November13, 1866.

To all whom it may concern:

Beit known that I, PERLEY D. Continues, of Portland, in the county ofCumberland and State of Maine, have invented a new and ImprovedFile-Blank-Rolling Machine; and I herebydeclare the following to be afull, clear, and exact description thereof, making reference to theaccompanying drawings, constituting part of these speciiications, inwhich- Figure 1, Plate No. 1, shows a top pla-n of my invention. Fig. l,Plate No. 2, shows a side elevation of the same. Fig. l, Plate No. 3,shows an interior side view of the wheel having' the cams l and 2,curved spring a, and bolt b; Fig. 2, Plate No. 3, an edge view of thesame; Fig. 3, Plate No. 3, the inside of the movable face of the wheelB, having the rod c and recess d. Fig. 4., Plate No. 3, shows aview ofthc main wheel having the ratchet e. Fig. 5, Plate No. 3, shows a planofthe jawsA in which the blank is placed and the method of opening andclosing the same 5 Fig. 6, Plate No. 3, a sectional elevation of therolling apparatus. Fig. 7, Plate No. 3, illustrates the method ofholding and releasing the bar which opens and closes the jaws 5 Figs. 8and 9, Plate No. 3, views of file-blanks; Figs.` 10 and 11, Plate No. 3,views of the forms into which the blanks are pressed under the differentoperations of the machine.

Same letters refer to like parts in all the plates and figures.

My invention has for its object the production ofa machine for rollingtile-blanks.

Three chief' and general functions are performed by my invention, andthe machine consists of three leading parts or combinations for theperformance of these ofces: First, certain devices for imparting motionto the roller 5 second, certain devices to confine and hold the lank inits bed, third, certain devices for releasing the blank when desired.

There are other portions of my machine operating in conjunction with theportions thus classified and referred to, which will be described moremin utely hereinafter.'

My machine is set upon a frame or stand having uprights or legs, andhorizontal parts connecting the uprights. The upright and horizontalportions are illustrated at fg, Plates l and 2, respectively. The partshown at h,

which confines the roller, should be made of O. Constant revolution isimparted to the.

wheel A by a band or other convenient or usual means. As this wheelrevolves, it conveys no motion to the wheel B O until the rod k is iirstpulled outwardly by the operator.

- Upon theV interior face of the disk O is the recess d, beforementioned, one end of which is vertical; and the other forms an inclinedplane, as illustrated in the drawings, Fig. 3, Plate 3. y

Upon the wheel B, which is rigidly affixed to the shaft i, and upon theface thereof toward C, is the spring a and bolt b, before referred to.When the rod 7c is pulled, as above specified, the eifect is as follows:The wheel or face O is turned somewhat on the shaft i. The bolt b,resting in the recess d, is, by the turning of O, carried up theinclined plane in the recess, and thrust through the wheel B in anaperture for that purpose. When thus thrust through B toward the wheelA, it is caught in the ratchet e, Fig. 4, Plate 3, of the wheel A, andthus the motion of the wheel A is imparted to the wheel B, andconsequently to the shaft fi, to which it is rigidly attached. To theshaft fi is rigidly attached the crank l, and to this crank theconnecting-rod m, at the joint a. To the other extremity of theconnccting-rod m is attached the sliding rack o, at thejointp. The racko moves in a groove or channel 011 the under side of h. Thus therevolution of the shaftiimparts mot-ion to the sliding rack o.

When the wheel B has made a single revolution the bolt b sinks once moreinto the recess d and out of the ratchet in the wheel A, and the wheel Athen, in consequence, continues to turn independent of, or withoutcarrying with it, the shaft t'. Resting and sliding upon the top of thehorizontal part of the frame f is the thrusting-beam o. This beam worksthe toggle s, which swings the lever t turning on the pivot a. The levert forms one side ofthe jaws in which the le-blan k is placed forrolling, and thus the beam, toggle, and lever, or movable jaw t, serveto compress and release the blank. The thrusting-beam r is moved forwardand the toggle is straightened by the cam 1 on the wheel B, and whenreleased is returned by the force of the spring c. (See Plate No. 1.)When pressed forward by the cam 1 on the wheel B, and when the toggle sis thus straightened, the thrusting-beam 1^ is held in this position bythe bolt or upright bar w attached to the lever :12. (See Plate No. 2.)rlhe upright bar w rises behind the projection y on the under side ofthe beam o', and is so raised by the spring e.

The thrusting-beam 1^ is allowed to be pulled back by the spring v asfollows: When the wheel B revolves with the wheel A its revolutionbrings another cam, 2, Fig. 1, Plate No. 3, in contact with the lever b.This contact forces the end of the lever so, to which the upright bar wis attached, downward, thus drawing the bar w downward and from behindthe projection y on the beam 1^, and so .allows the beam r to be pulledbackward by the spring fu. Thus the toggle sis crookedand straightenedand the jaw t opened and closed. (See Plate No. 2.)

The extent to which the thrusting-beam i" is moved is regulated by thescrew e on the pro= jection y by turning the screw in or out, Fig. 7,Plate No. 3. The space between the-jaws can be increased or 'diminishedby the screw d', by which the toggle can be moved toward or roller andfitting into the space between thejaws, and intended to press upon theblank, is a projection, 3, extending the whole circumference of theroller. The roller is carried backward and forward over the jaws and onthe tracks by the movement of the sliding rack o before described.

The bed ofthe channel between the jaws is made inclined, both on thesliding rack o andv the stationary jaw beneath it, so that the outer endof the file is thinner than the butt, as is well known.

The butt of the blank is received by certain projections in the end ofthe space between the jaws. These projections it into nicks in the endofthe blanks as commonly made. This is clearly illustrated in Fig. 5,Plate No. 3, and in Fig. 6, same plate.

The operation of my invention is as follows: Suppose the wheel A to berevolving, as before specified. Place the blank, after being heatedred-hot, in the jaws, draw out the rod k so as to impartthe motion ofthe wheel 7c to B. The cam 1 immediately presses forward thethrustingbeam r and straightens the toggle '8. The bolt fw rises behindthe projection y and holds the blank firmly :in the jaws. The revolutionof the shafti carries the roller over the blank and back. When theroller returns to 4the position from which it started the cam 2 on thewheel B strikes the lever b', which draws the bar or bolt fw downwardand allows the springt to pull the thrusting-beam r backward, whichreleases the hold ofthe jaw t upon the blank, and the operation iscomplete.

Vhen first compressed, before rolling, the blank will present theappearance at the sides shown in Fig. 10, Plate No. 3, but the rollerwill restore it to the form seen in Fig. 1l', same plate. A shortdistance below the movable side of the jaws to receive the blank is theaperture z', to receive the particles detached from the surface of theblank by oxidation. Formation is indicated by the dotted lines in PlateNo. 2. l

What 1 claim as my invention, and desire to secure by Letters Pat-ent,is-

1. The combination and arrangement of the wheels A B C, spring a, boltb, rod a, shaft i, crank Z, connecting-rod m, and sliding rack o, allconstructed and operating as and for the purposes hereinbefore setforth.

2. In combination with the subject of the rst claim, the combination ofthe sliding' rack o, geared roller g', tracks 7c l', with the inclinedchannel between the same, as and for the purposes set forth.

3. The combination and arrangement of the wheels A B G and rod 7c,operating as described, cams 1 and 2, with thrusting-beam r, toggle s,jaw t, levers bf w, boltw, springe and spring o, all operating as andfor the purposes set forth.

4. The combination and arrangement of the screw e in the projection ywith the screw d' on the toggle s, as and for the purposes set forth.

5. The combination of the part h, sliding rack o, geared roller g',tracks k l', and projection 3 on the roller, for the purpose of sub-WILLIAM H. CLIFFORD, HENRY C. HoUs'roN.

